Is it possible to make a triangel with three right angels?
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after 4 votes the winner is...
9spaceking
Voting Style:  Open  Point System:  7 Point  
Started:  4/15/2014  Category:  Science  
Updated:  3 years ago  Status:  Post Voting Period  
Viewed:  1,142 times  Debate No:  52576 
Debate Rounds (2)
Comments (5)
Votes (4)
First day is for accepting, second is for proving.
I accept the challenge. I define triangle as "a closed plane figure having three sides and three angles." http://dictionary.reference.com... And "Right angles" as angles with the measure of 90 degrees. Onto you pro. 

A triangle would be defined as a shape with three sides. so why not a three right angels. To do this just place a triangle on a sphere. http://www.math.cornell.edu...
Three STRAIGHT sides, to be more accurate. A sphere has no straight sides, all sides are curved, so that is not a triangle. Furthermore, in a triangle, all the (interior) angles always add up to 180. Always. Because this "triangle's" interior angles add up to 270, it in no way can be a triangle by the proven properties of a triangle. Source: http://www.mathsisfun.com... Vote con. 
4 votes have been placed for this debate. Showing 1 through 4 records.
Vote Placed by The_Scapegoat_bleats 3 years ago
apaches  9spaceking  Tied  

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Reasons for voting decision: Arguments are tied, because Con changed the parameters of his own definition posthoc. Both are right, but they are talking about different situations. All that is left is S&G, and that goes to Con.
Vote Placed by AthenaMusic10 3 years ago
apaches  9spaceking  Tied  

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Reasons for voting decision: refer to my comment in the comment's section below
v v v v
Vote Placed by demonlord343 3 years ago
apaches  9spaceking  Tied  

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Reasons for voting decision: I am not sure if this is some weird devil's advocate thing for math, but I am pretty sure that Con is correct..
Vote Placed by Sargon 3 years ago
apaches  9spaceking  Tied  

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Reasons for voting decision: Con showed that a triangle, by the definition of a triangle, cannot have three right angles, as this violates the angle sum theorem. This negates the resolution. Easy Con win.
Nobody volunteered, so she picked a boy in the first row to come up to the stage. '180 degrees,' he answered.
She smiled. 'No. In plane geometry, triangles' angles add up to 180 degrees. However, if your triangle is drawn on the sphere, the angles would be completely different.'
The moral of the story? 'Don't assume everything will be all right'.
Here is my input: you are both correct, in a way. The Contender is using Euclidean geometry in a Euclidean plane, which is the most commonly used form of mathematics in this regard. However, there are alternatives. There is, for example, the existence of hyperbolic planes or spheres in hyperbolic and spherical geometry respectively. In both of these forms of geometry, a triangle can be made that is over 180 degrees.